Unipolar
Unipolar
Unipolar (pronounced: yoo-nee-poh-lar) is a term used in various fields such as psychology, neuroscience, and electronics. In the context of mental health, it refers to a type of mood disorder characterized by the presence of one pole or extreme of mood, typically depression. In electronics, it refers to a type of signal that has either a positive or zero value.
Etymology
The term 'unipolar' is derived from the Latin words 'uni' meaning 'one' and 'polaris' meaning 'pole'. It was first used in the mid-19th century to describe a single-pole electrical system.
Related Terms
- Bipolar disorder: A mental disorder characterized by periods of depression and periods of elevated mood.
- Major depressive disorder: A mental disorder characterized by at least two weeks of low mood that is present across most situations.
- Unipolar neuron: A type of neuron in which only one protoplasmic process (neurite) extends from the cell body.
- Unipolar depression: Another term for major depressive disorder, emphasizing the single mood state involved.
See Also
External links
- Medical encyclopedia article on Unipolar
- Wikipedia's article - Unipolar
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